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- Geographic Data Technology, Inc. (GDT)289
- Environmental Systems Research Institute, Inc. (ESRI)69
- Esri47
- United States Geological Survey46
- TomTom North America, Inc.31
- National Atlas of the United States and the United States Geological Survey29
- Bureau of Transportation Statistics15
- U.S. Department of Commerce, Census Bureau11
- National Park Service4
- Tele Atlas North America, Inc.4
- Smithsonian Institution, Global Volcanism Program, National Atlas of the United States, and the United States Geological Survey3
- U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency3
- Department of Commerce, Census Bureau, Geography Division2
- Federal Railroad Administration (FRA)2
- National Atlas of the United States2
- U.S. Department of Commerce, Census Bureau, Geography Division2
- Health Forum, L.L.C.1
- U.S. Department of Commerce, Census Bureau, Esri1
- United States. National Geospatial-Intelligence Agency1